/* ===================================
   ELTAN Public Pages - Material Design 3
   Modern CSS for About, Events, News, etc.
   =================================== */

/* === ROOT VARIABLES === */
:root {
    /* ELTAN Brand Colors */
    --eltan-orange: #E67918;
    --eltan-orange-light: #FF9147;
    --eltan-orange-dark: #C5630C;
    --eltan-blue: #1565C0;
    --eltan-blue-light: #5E92F3;
    --eltan-blue-dark: #003C8F;
    --eltan-teal: #00796B;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-black: #1A1A1A;
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #EEEEEE;
    --color-gray-300: #E0E0E0;
    --color-gray-400: #BDBDBD;
    --color-gray-500: #9E9E9E;
    --color-gray-600: #757575;
    --color-gray-700: #616161;
    --color-gray-800: #424242;
    --color-gray-900: #212121;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === CONTAINER === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === NAVIGATION === */
.modern-nav {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-gray-200);
}

.modern-nav .nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
}

.modern-nav .nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    margin: 0;
}

.modern-nav .nav-logo img {
    display: block;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    margin: 0;
}

/* Ensure the site name sits neatly beside the logo on all pages */
.modern-nav .nav-logo span {
    display: inline-block;
    font-weight: 700;
    font-size: 1.25rem;
    line-height: 1;
    color: var(--eltan-orange);
    margin: 0;
}

.modern-nav .nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
}

.modern-nav .nav-link {
    text-decoration: none;
    color: var(--color-gray-700);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    font-size: var(--font-size-base);
}

.modern-nav .nav-link:hover {
    color: var(--eltan-orange);
    background-color: var(--color-gray-50);
}

.modern-nav .nav-link.active {
    color: var(--eltan-orange);
    background-color: rgba(230, 121, 24, 0.1);
}

.modern-nav .nav-cta {
    display: flex;
    gap: var(--spacing-sm);
}

.modern-nav .btn-nav-primary {
    background: linear-gradient(135deg, var(--eltan-orange) 0%, var(--eltan-orange-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
}

.modern-nav .btn-nav-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.modern-nav .btn-nav-ghost {
    color: var(--eltan-orange);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--eltan-orange);
    transition: var(--transition-base);
    background: transparent;
}

.modern-nav .btn-nav-ghost:hover {
    background: var(--eltan-orange);
    color: var(--color-white);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-gray-700);
    margin: 5px 0;
    transition: var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 1024px) {
    .modern-nav .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }

    .modern-nav .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .modern-nav .nav-link {
        width: 100%;
        text-align: left;
    }

    .modern-nav .nav-cta {
        flex-direction: column;
        width: 100%;
    }

    .modern-nav .btn-nav-ghost,
    .modern-nav .btn-nav-primary {
        width: 100%;
        justify-content: center;
    }

    .nav-toggle {
        display: block;
    }
}

/* === FOOTER (shared professional footer) === */
.site-footer {
    background: var(--color-gray-900);
    color: var(--color-white);
    margin-top: 0; /* remove extra whitespace before footer */
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-3xl) var(--spacing-md);
}
.footer-brand .footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--eltan-orange);
    margin-bottom: var(--spacing-sm);
}
.footer-description {
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-md);
}
.footer-social { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }
.social-pill {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.875rem;
}
.social-pill:hover { background: rgba(255,255,255,0.08); }
.footer-title {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-sm);
}
.footer-links { list-style: none; display: grid; gap: 10px; }
.footer-links a { color: var(--color-white); text-decoration: none; opacity: .85; }
.footer-links a:hover { opacity: 1; color: var(--eltan-orange); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); }
.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-md);
    color: var(--color-gray-300);
}
.footer-bottom-links { display: flex; gap: var(--spacing-md); }
.footer-bottom-links a { color: var(--color-gray-300); text-decoration: none; }
.footer-bottom-links a:hover { color: var(--color-white); }
@media (max-width: 992px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) {
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom-inner { flex-direction: column; gap: var(--spacing-sm); }
}

/* === PAGE HEADER === */
.page-header {
    background: linear-gradient(135deg, var(--eltan-orange) 0%, var(--eltan-blue) 100%);
    padding: var(--spacing-3xl) var(--spacing-lg);
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.05)"/></svg>');
    opacity: 0.3;
    animation: float 30s infinite linear;
}

@keyframes float {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 50px) rotate(360deg); }
}

.page-header .container {
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.page-header .subtitle {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.page-header h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.page-header .description {
    font-size: var(--font-size-lg);
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.95;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: var(--font-size-3xl);
    }

    .page-header {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
}

/* === CONTENT CONTAINER === */
.content-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

@media (max-width: 768px) {
    .content-container {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
}

/* === CARDS === */
.card-modern {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 1px solid var(--color-gray-200);
}

.card-modern:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.card-modern img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.card-modern .card-body {
    padding: var(--spacing-lg);
}

.card-modern .card-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.card-modern .card-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.card-modern .card-meta .meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.card-modern .card-text {
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.card-modern .card-label {
    display: inline-block;
    background: var(--eltan-orange);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-right: var(--spacing-xs);
}

/* === BUTTONS === */
.btn-modern {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
}

.btn-primary-modern {
    background: linear-gradient(135deg, var(--eltan-orange) 0%, var(--eltan-orange-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
}

.btn-secondary-modern {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary-modern:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-900);
}

.btn-outline-modern {
    background: transparent;
    border: 2px solid var(--eltan-orange);
    color: var(--eltan-orange);
}

.btn-outline-modern:hover {
    background: var(--eltan-orange);
    color: var(--color-white);
}

.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* === FORM ELEMENTS === */
.form-field-modern {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label-modern {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: var(--font-size-base);
    color: var(--color-gray-900);
    margin-bottom: 0.25rem;
}

.form-input-modern {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-base);
}

.form-input-modern:focus {
    border-color: var(--eltan-orange);
    box-shadow: 0 0 0 3px rgba(230, 121, 24, 0.1);
}

.form-input-modern:hover:not(:focus) {
    border-color: var(--color-gray-400);
}

.form-input-modern::placeholder {
    color: var(--color-gray-500);
}

/* Select Dropdown */
.form-input-modern select,
select.form-input-modern {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23757575' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 20px;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* File Upload */
.file-upload-modern {
    position: relative;
}

.file-input-modern {
    position: absolute;
    opacity: 0;
    width: 0.1px;
    height: 0.1px;
    z-index: -1;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2.5rem 1.5rem;
    background-color: var(--color-gray-50);
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

.file-upload-label:hover {
    background-color: var(--color-gray-100);
    border-color: var(--eltan-orange);
}

.file-input-modern:focus + .file-upload-label {
    border-color: var(--eltan-orange);
    box-shadow: 0 0 0 3px rgba(230, 121, 24, 0.1);
}

/* Form Error */
.form-error-modern {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: var(--font-size-sm);
    color: #D32F2F;
    margin-top: 0.25rem;
}

.form-error-modern::before {
    content: "⚠";
    font-size: 1rem;
}

/* Textarea */
textarea.form-input-modern {
    min-height: 120px;
    resize: vertical;
}

/* Input States */
.form-input-modern:disabled {
    background-color: var(--color-gray-100);
    color: var(--color-gray-500);
    cursor: not-allowed;
}

.form-input-modern.error {
    border-color: #D32F2F;
}

.form-input-modern.error:focus {
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

/* === GRID LAYOUTS === */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* === TEAM CARDS === */
.team-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border-bottom: 4px solid var(--eltan-orange);
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.team-card img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.team-card .card-content {
    padding: var(--spacing-lg);
    text-align: center;
}

.team-card .member-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.team-card .member-role {
    font-size: var(--font-size-sm);
    color: var(--eltan-orange);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* === SECTION DIVIDER === */
.section-divider {
    margin: var(--spacing-3xl) 0;
    text-align: center;
}

.section-divider h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.section-divider p {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.section-divider .divider-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--eltan-orange) 0%, var(--eltan-blue) 100%);
    margin: 0 auto;
    border-radius: var(--radius-full);
}

/* === ALERT MESSAGES === */
.alert-modern {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    border: 1px solid;
}

.alert-info {
    background-color: rgba(21, 101, 192, 0.1);
    border-color: var(--eltan-blue);
    color: var(--eltan-blue-dark);
}

.alert-success {
    background-color: rgba(0, 121, 107, 0.1);
    border-color: var(--eltan-teal);
    color: #004D40;
}

.alert-warning {
    background-color: rgba(230, 121, 24, 0.1);
    border-color: var(--eltan-orange);
    color: var(--eltan-orange-dark);
}

/* === FOOTER === */
.modern-footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.modern-footer .footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.modern-footer .footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.modern-footer .footer-logo img {
    width: 80px;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.modern-footer h4 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.modern-footer .social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.modern-footer .social-link {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--color-white);
    transition: var(--transition-base);
}

.modern-footer .social-link:hover {
    transform: translateY(-4px);
}

.modern-footer .social-link.facebook {
    background: #3b5998;
}

.modern-footer .social-link.youtube {
    background: #FF0000;
}

.modern-footer .social-link.telegram {
    background: #0088cc;
}

.modern-footer .footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.modern-footer .footer-bottom a {
    color: var(--eltan-orange);
    text-decoration: none;
}

@media (max-width: 768px) {
    .modern-footer .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* === UTILITY CLASSES === */
.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}